Karolina Pliskova and Kiki Bertens both claimed titles last week - which leaves the fight for the potential final place in Singapore in the balance as the Asian swing continues on.
Former World No.1 Garbiñe Muguruza, Jelena Ostapenko, Madison Keys, Ashleigh Barty, and Johanna Konta are among those in action on a jam-packed Monday at the Dongfeng Motor Wuhan Open.
Former World No.1 Karolina Pliskova outserved US Open champion Naomi Osaka to end her 10-match winning streak in the Toray Pan Pacific Open final, winning her second title of the season.
With 1,900 points on offer in Wuhan and Bejing, here's how the China Double could make or break the Porsche Race to Singapore.
Sloane Stephens will face her Wimbledon conqueror Donna Vekic again at the Toray Pan Pacific Open next week, while Naomi Osaka will return to her home tournament as a Grand Slam champion for the first time. Scroll down for full draw.